matthews



(No Model.)

2 SheetS-Sheet 1.

J. MATTHEWS.

APPARATUS FOR WASHING GARBONIG ACID GAS.

Patented Aug. 16, 1881.

No. 245,735 ia- AS- I 11206922092 l as. MW

u. PLYERS. Pholo-hlhognplwr. Wmlunglon. ovc

(No Model.) 2 Sheets-Shet 2.

J. MATTHEWS.

APPARATUS FOR WASHING GARBONIU ACID GAS.

Patented Aug. 16, 1881.

'flzzvezzzaz; J

N, PETERS. Pmlwh'lhogmpmn Waihing un. D. c.

UNITED STATES PATENT OFFICE.

JOHN MATTHEWS, OF NEW YORK, N. Y.

APPARATUS FOR WASHING CARBONlC-ACID GAS.

SPECIFICATION forming part of Letters Patent No. 245,735, dated August 16, 1881,

Application filed April 18, 1881. (No model.)

To all whom it may concern:

Be it known that I, JOHN MATTHEWS, of New York, in the county and State of New York, have invented an Improved Apparatus for Washing Carbonic-Acid Gas, of which the following is a specification.

This invention relates to a simplified and economical construction of apparatus for washing gas, such as is used in making carbonated beverages; Apparatus for this purpose has heretofore been made to occupy large and valuable space in connection with the generators and charging appliances, and was not always fully effective, as it did not insure a proper division of the gas into small particles as it penetrates the strata of water and marble chips, which are usually placed in such washing apparatus.

. Among the objections to gas-washers formerly in use may be mentioned the following: Separate heads and bottoms were required for each individual gas-washer. The pipes and connections for joining the gas-washers together were expensive,and the many couplings required increased the liability of leakage. These connections were in the way, taking up much valuable space, and had to be soldered to the gas-washer, which required skilled labor and much time. When several gas-washers were required they could not conveniently be placed very close together. Thus, again, much valuable space was taken up. The washing of the gas was not always fully effective, as it did not insure a proper division of the gas into small particles as it penetrated the strata of water and marble chips which are usually placed in such washing apparatus.

1 construct my improved gas-washer of a head and a bottom of brass or other suitable material joined together with a metal cylinder, preferably of seamless copper, which is let into a groovein the head and bottom and soldered fast thereto. When it is desired to have several gas-washers I construct the head and bottom in such a manner as to receive two or more cylinders, thus forming a series of gas-washers with only one bottom. The passages connecting one gas-washer to the other are formed in the head, thus doing away with the separate pipes and connections which were soldered to the heads of the gas-washers as heretofore constructed. At the lower end of each cylinder of the gas-washer is a perforated diaphragm for holding the marble chips, which is formed with and is part of the gas-washer bottom. This diaphragm has spiral ribs on its underneath side for the better distribution of the gas. In my apparatus the gas is therefore divided into minute bubbles or particles, and caused, in the divided condition, to traverse the entire colu mo of water and marble chips, and,in fact, as many such columns as may be necessary to insure the complete elimination of impurities that leave the generator in connection with the gas.

In the accompanying drawings, Figure 1 represents a side view of myimproved gas-washing apparatus. Fig. 2 is a vertical longitudinal sect-ion of the same. Fig.3 is a plan or top view of the same. Fig. 4 is an inverted-plan view of the diaphragm 1) and horizontal section on line 0 c, Fig. 2. Fig. 5 is a detail top view of a projecting bow of the generator, from which the washing apparatus may be suspended.

Ain the drawings represents a cylinder made of sheet-copper or other suitable material. The ends of this cylinder are fitted into grooves that are formed respectively in the top and bottom castings, B and 0. These castings form the head and bottom of the washing apparatus. The head B has the charging-inlet a for admitting the water and the marble chips. The bottom 0 has a suitable outlet at the lower part (marked 1)) for emptying it, and supports, also, an inner grating or diaphragm,D,upon which the marble chips are deposited. Within the cylinderA,and by preference in the center thereof, is a copper pipe, E,'which is held in place by asuitable hub, 01, formed in the head B, and also by a hub, e, in the diaphragm D, as shown. The upper end of the tube E communicates with the gas-inlet pipe f, and, if desired, also with a pipe, f that leads to a pressure-gage. The lower end of the tube E is open within the lower casting, C. The diaphragm D, which is shown in inverted-plan view in Fig. 4, is perforated with a series of small. holes, and has at its lower face a series of spirally-arranged projecting ribs, (marked g.)

After the apparatus has been charged with the marble chips and with the water, the opening b being of course closed by a suitable cap, the gas is admitted through the pipe f into the inner tube, E, and passes downward through said tube E into the chamber formed by the bottom C below the diaphragm D. From this chamber the gas can find its way into the upper body of the cylinder A only by penetrating through the small holes of the diaphragm D, by which it is divided into small particles or bubbles, the spiral or other ribs g assisting in subdividing the column of gas and preventing the gas at any place from passing through the washer in unbroken columns or sheets. Having passed the diaphragm D, the gas bubbles must ascend through the column of chips and water, and can then escape, if purified, into the charging apparatus.

By preference I use the duplex washing apparatus shown in Fig. 2, so that what escapes from the cylinder A through the pipe h will enter the tube E of the adjoining washing ap-' paratus, and thence enter the cylinder A and be treated in said cylinder A as in the first cylinder, A, and so on, through as many of these cylinders as it may be advisable to join together into one structure. When completely washed the gas is discharged through the opening t in the head.

I claim- 1 A gas-washing apparatus composed of the outer cylinder, A, inner vertical tube, E, head B, having pipe f, bottom 0, and diaphragm D,

the pipesE andfbeingin communication within the head B, substantially as described.

2. In a gas-washing apparatus, the diaphragm D, adapted to support the chips of marble and to permit the ascent of the gas through small holes formed in it, said diaphragm being provided on its lower face with series of ribs g, substantially as described.

3. The duplex gas-washing apparatus constructed of the head B, bottom 0, and of two or more cylinders, AA, the head B being made in one piece, and the bottom 0 also in one piece, substantially as herein shown and described.

4:. In a gas-Washer having a series of cylinders, A A, the head B, constructed to contain within it the connecting-passages f, h, and i, substantially as herein shown and described.

JOHN MATTHEWS.

Witnesses:

W. A. PETERS, A. F. OAKEY. 

